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Explore 250+ research bispecific antibodies designed to simultaneously engage two distinct targets. Including T-cell engagers (CD3×tumor antigen), checkpoint co-targeting (PD-1×LAG-3, PD-1×TIM-3), and dual-receptor blocking formats. Produced using the same variable-region sequences as approved or clinical-stage bispecific therapeutics — supporting mechanism-of-action studies, assay development, and preclinical pharmacology. All products are designated Research Use Only (RUO) — not intended for diagnostic or therapeutic procedures. RUO

Why Researchers Choose abinScience

Dual-Target Engagement Simultaneously bind two distinct antigens — enabling T-cell redirection, immune cell co-engagement, and synergistic pathway modulation studies.
T-Cell Engager Formats CD3-based bispecific constructs targeting tumor-associated antigens (BCMA, CD19, CD20, HER2, EpCAM) — reference molecules for BiTE and bispecific therapeutic research.
Checkpoint Co-Targeting Bispecific formats combining checkpoint targets (PD-1×CTLA-4, PD-1×LAG-3, PD-L1×TIM-3) for combination immunotherapy mechanism studies.
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  • Product types
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    Research Biosimilar (126)
    Research Biosimiliar (1)
    Antibodies (121)
    Biosimilars (10)
  • Expression system
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    Mammalian Cells (138)
  • Target
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    CD203c/ENPP3 & CD3 (1)
    TRP-1 & CD47/MER6 (1)
    CD20 (5)
    TACSTD2/TROP2 & HSG (1)
    IL13 & TSLP & ALB (1)
    CD279/PD-1 & CD274/PD-L1 (1)
    EGFR & CD3E (1)
    CD314/KLRK1 & CD3E (1)
    MET/HGFR & EGFR/ERBB1 (1)
    VSIR/VISTA & CD274/PD-L1 (1)
    IL17 (1)
    95 subunit beta (1)
    CLDN18.2 & CD3E (1)
    CD3 (1)
    IL1F1 (1)
    BLYS (1)
    Allergen Fel d 1 (4)
    LFA-1A (1)
    B-lymphocyte antigen CD19 (1)
    Interleukin-13 (1)
    IgG1 (S239D & I332E) (1)
    TNFA & ALB (1)
    IL1F2 (1)
    CD340/ERBB2 (1)
    BCMA & CD3E (2)
    TNFA & IL17A (1)
    4-1BB & HER2 (1)
    TNFSF20 (1)
    CD3 & CD20 (1)
    T3E (7)
    CD11b (1)
    4-1BB & TPBG/5t4 (1)
    B-lymphocyte surface antigen B1 (5)
    IL4 (1)
    FOLH1/PSMA & CD3E (3)
    IL17A/F & IL13 & ALB (1)
    TRP-1 & CD134/OX40 (1)
    EDB & CD3E (1)
    TRP-1 & CD3e (1)
    EGFR/ERBB1 & c-Met/HGFR (1)
    ProteinUL128 & UL131A (1)
    CD279/PD-1 & CD47/MER6 (1)
    GUCY2C & CD3E (1)
    CD38/ADPRC 1 & CD3E (2)
    CD279/PD-1 & IL2 (1)
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    FLT3 & AXL & CD40 (1)
    Interleukin-4 (1)
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    CD221/IGF1R & ERBB3/HER3 (1)
    CD152/CTLA4 & CD274/PD-L1 (1)
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    CD274/PD-L1 & CD3E (1)
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    CD123/IL-3Rα & CD3E (2)
    GPRC5D & CD3E (1)
    CD22 & CD3E (1)
    MS4A1 (5)
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    BCMA & CD3 (1)
    IL1A (1)
    CD278/ICOS & CD279/PD-1 (1)
    Dendritic cell-derived TNF-like molecule (1)
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    Binetrakin (1)
    CD20/MS4A1 & CD3E (2)
    ACVR2A & ACVR2B (5)
    B-cell-activating factor (1)
    T-cell surface glycoprotein CD3 epsilon chain (7)
    Integrin alpha-M (1)
    VEGFA & ANGPT2/ANG-2 (1)
    CD200 & CD47/MER6 (1)
    ERBB3/HER3 (1)
    CD274/PD-L1 & CD47/MER6 (1)
    CD366/TIM-3 & CD274/PD-L1 (1)
    CD38 & BCMA & CD3 (1)
    CR3A (1)
    CD274/PD-L1 & CD152/CTLA4 (1)
    Leukocyte surface antigen Leu-16 (5)
    CTLA8 (1)
    PD-L1 / VEGF-A (1)
    CD18 (1)
    PAC-1 (ITGA2B & ITGB3) (15)
    CD47 & PD-1 (1)
    Hematopoietin-1 (1)
    TALL-1 (1)
    Integrin alpha-L (1)
    B-cell stimulatory factor 1 (1)
    VEGFA & CD279/PD-1 (1)
    EGFR/ERBB1 & ERBB3/HER3 (1)
    CD33 & CD3E (3)
    B7-H4 & CD3 (1)
    CD19 & CD28 (1)
    PD-1 & VEGFR2/KDR/Flk-1 (1)
    Allergen Fel d I-A & B (2)
    CD137/4-1BB & CD340/ERBB2 (2)
    EGFR/ERBB1 & CD16a/FCGR3A (1)
    CX3CR1 & Albumin (1)
    CD126/IL6R & ALB (1)
    CD152/CTLA4 & CD134/OX40 (1)
    CD269/BCMA & CD3E (7)
    EGFR/ERBB1 & LGR5 (1)
    E1 & E2 (gp35 & gp70) (3)
    FOLH1/PSMA & CD28 (1)
    CD19 & CD3E (3)
    CD274/PD-L1 & CD134/OX40 (1)
    CD340/ERBB2 & ERBB3/HER3 (1)
    Fluorescein & CD47/MER6 (1)
    CD274/PD-L1 & CD137/TNFRSF9 (1)
    PDL1 & VEGF (1)
    Neutrophil adherence receptor (1)
    CD223/LAG3 & CD152/CTLA4 (1)
    Integrin α4β7 (ITGA4 & ITGB7) (5)
    IL-17 (1)
    ITGB2 (1)
    GD2 & CD3E (1)
    B7-H3 & EGFR (1)
    MUC17/MUC3 & CD3E (1)
    IL-1 alpha (1)
    CD28 & EGFR (1)
    TNF- and APOL-related leukocyte expressed ligand 1 (1)
    CR-3 alpha chain (1)
    Pitrakinra (1)
    CD340/ERBB2 & CD279/PD-1 (1)
    EGFR/ERBB1 & CD3E (2)
    VEGFA & ANG-2 (2)
    CD133/PROM1 & CD3E (1)
    Glycoprotein (1)
    Fluorescein & CD3E (1)
    EGFRvIII & CD3E (1)
    CD66e/CEA & CD3E (1)
    CD326/EPCAM & CD3E (2)
    IgE/IGHE & Albumin (1)
    DLL3 & CD47/MER6 (1)
    CD3E & EpCAM (1)
    Interleukin-17A (1)
    CD340/ERBB2/HER2 & CD3E (1)
    CD11A (1)
    CD19 (1)
    CD274/PD-L1 & CD279/PD-1 (1)
    IL-18 & IL-1β (1)
    C5 & ALB (1)
    Interleukin-1 beta (1)
    PD-L1 & TGF-Beta (1)
    B lymphocyte stimulator (1)
    Cell surface glycoprotein MAC-1 subunit alpha (1)
    4-1BB & FAP (1)
    Lymphocyte stimulatory factor 1 (1)
    CD152/CTLA4 & CD279/PD-1 (1)
    CD307e/FCRL5 & CD3E (1)
    CD340/ERBB2 & CD3E (5)
    B-lymphocyte antigen CD20 (5)
    LAG-3 & PD-1 (1)
    FCGRT/FCRN & TAG-72 (1)
    TNFSF15/TL1A & TNFa (1)
    CLDN18.2 & CD137/4-1BB (1)
    DLL4 & VEGFA (2)
    IL22 & IL13 & ALB (1)
    CLDN6 & CD3 (1)
    F10/Factor X & F9/Factor IX (1)
    CD274/PD-L1 & CD28 (1)
    CD371/CLEC12A & CD3E (1)
    FAP & CD3E (1)
    ACVRL1/ALK-1 & VEGFA (1)
    CD79B & CD3E (1)
    PD-L1 & VEGF (1)
    CD47/MER6 & CD274/PD-L1 (1)
    BAFF (1)
    EGFR/ERBB1/HER1 & CD3E (1)
    Leukocyte function-associated molecule 1 alpha chain (1)
    CD331/FGFR1 & KLB/Beta-klotho (1)
    Differentiation antigen CD19 (1)
    IL13 (1)
    CD276/B7-H3 & CD3E (2)
    IL1B (1)
    TNFSF13B (1)
    CD3E (7)
    Leukocyte adhesion receptor MO1 (1)
    IL-4 (1)
    CTLA-8 (1)
    CTLA4 & PD1 (2)
    CD18 & CD11 (5)
    Complement receptor C3 subunit beta (1)
    CD137/4-1BB & CD274/PD-L1 (3)
    CDH17 & CD3E (1)
    Bp35 (5)
    Integrin AVB6 (11)
    CLDN6 & CD137/4-1BB (1)
    Fluorescein & CD274/PD-L1 (1)
    CD223/LAG3 & CD279/PD-1 (2)
    ADGRE1/F4/80 & CD3E (1)
    Cell surface adhesion glycoproteins LFA-1/CR3/p150 (1)
    CD79b & CD32b (1)
    APP & CD71/TFRC (1)
    IL1RAP (1)
    CD40/TNFRSF5 & MSLN (1)
    ZTNF4 (1)
    CD16a & MSLN (1)
    Leukocyte adhesion glycoprotein LFA-1 alpha chain (1)
    T-cell surface antigen Leu-12 (1)
    NC30 (1)
    LILRB1 & LILRB2 (1)
    GPC3 & CD3E (2)
    CD135/FLT3 & CD3E (1)
    Catabolin (1)
    MUC16/CA-125 & CD3E (1)
    Integrin AVB3 (5)
    CD257 (1)
    gp100 peptide-HLA Complex (1)
    ITGAM (1)
    BSF-1 (1)
    DLL3 & CD3E (1)
    CDH3/P-cadherin & CD3E (1)
    Cytotoxic T-lymphocyte-associated antigen 8 (1)
    CD40/TNFRSF5 & CD137/TNFRSF9 (1)
  • Species
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    Human cytomegalovirus (HCMV/HHV-5) (1)
    Human immunodeficiency virus 1 (HIV-1) (1)
    P. aeruginosa (1)
    Hepatitis C Virus (HCV) (3)
    Rabies virus (RABV) (1)
    Human (143)
    Mouse (21)
  • Applications
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    IP (1)
    Functional assay (139)
    Cell Depletion (1)
    Research in vivo (139)
    Bioactivity: FACS (1)
    FCM (51)
    Research in vivo (4)
    FACS (14)
    WB (4)
    Functional assay (16)
    FuncS (31)
    in vivo (2)
    in vivo study (1)
    ELISA (190)
    SPR (2)
    In vivo Control (2)
    Neutralization (8)
    Bioactivity: FACS (136)
    Isotype Control (2)
    IF (2)
    in vivo assay (1)
  • Reactivity
    0 selected
    Hepatitis C Virus (HCV) (2)
    Epstein-Barr virus (EBV/HHV-4) (3)
    CD79β/CD79B & CD3E & CD20/MS4A1 (1)
    CLDN18.2 & CD3DE & CD3D (1)
    Human (55)
    IL12B-IL12A-ABP (1)
    CD269/TNFRSF17/BCMA & CD3E (1)
    CLDN18.2 & CD3E (1)
    CD20/MS4A1 & CD335/NCR1/NKp46 (1)
    Homo sapiens (2)
    CD203c/ENPP3 &CD3E (1)
    Mouse (22)
    Felis catus (Cat) (Felis silvestris catus) (1)
    ALB & IL2 (1)
    Human immunodeficiency virus 1 (HIV-1) (1)
    CD335/NCR1/NKp46 & CD269/TNFRSF17/BCMA (1)
    Cat (5)
    FOLH1/PSMA & CD3E (1)
  • Host species
    0 selected
    L235A (1)
    G237A) (1)
    kappa (1)
    Humanized (69)
    MouseHybridRat (1)
    Mouse (53)
    Rat (5)
    Human (110)
    IgG1(L234A (1)
    Chimeric (6)
  • Clonality
    0 selected
    Monoclonal (239)
  • Conjugate
    0 selected
    APC (9)
    PerCP (9)
    PE (9)
    Unconjugated (211)
    FITC (9)